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UNO [17]
2 years ago
5

Simplify each expression below.

Mathematics
1 answer:
Natalija [7]2 years ago
6 0

Answer:

C) 45-38

Step-by-step explanation:

The reason why this is your answer is because if we subtract, the answer is less than 12.

Thanks!

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While walking between gates at an airport, you notice a child running along a moving walkway. Estimating that the child runs at
tekilochka [14]

The speed of the moving walkway relative to the airport terminal exists at 1.84 m/s.

<h3>How to estimate the speed of the moving walkway relative to the airport terminal?</h3>

Let x be the speed of the walkway.

(2.8 + x) = speed of child moving in direction of the walkway

(2.8 - x) =  speed of child moving against the direction of the walkway

Travel time = distance/speed

Travel time of child moving in direction of walkway = 23/(2.8+x)

Total elapsed time given = 29s

23/(2.8 + x)+ 23 / (2.8-x) = 29

LCD = (2.8 + x)(2.8 - x)

23(2.8 - x) + 23(2.8 + x) = 29(2.8 + x)(2.8 -x)

simplifying the equation, we get

23*2.8-23x+23*2.8+23x=29(2.8^2-x^2)

23(2.8+2.8)/29=2.8^2-x^2

x^2=(2.8)^2-(23*5.6)/29)=3.4

x=\sqrt{3.4}=1.84m/s

Speed of walkway = 1.84 m/s

The speed of the moving walkway relative to the airport terminal exists at 1.84 m/s.

To learn more about Speed refer to:

brainly.com/question/4931057

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4 0
2 years ago
What is an integer function?<br>​
djyliett [7]

Answer:

The INTEGER function returns an integer representation of a number or character string in the form of an integer constant.

Step-by-step explanation:

6 0
3 years ago
Can u use the distributive property to simplify 2(n - 6) if so what
OverLord2011 [107]
2 x (n - 6)
(2 x n - 2 x 6)
(2n - 2 x 6)
2n - 12
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(-4, 6) and (3.-7)<br> Find the distance between each pair of parts
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Answer:

√218

Step-by-step explanation:

Distance-√(x2-x1)+(y2-y1)

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Plss need help, question on pic below
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Answer:

polygon klhij is congruent to polygon vwstu

Step-by-step explanation:

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2 years ago
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